Remote name could not be resolved .

Question

hi ,
Iam trying to add mail options in my application

When i run iam get the following Error
Remote name could not be resolved 'smtp.gmail.com'

My application is running on system which is in network,
LAN Server has proxy.
Is there a way to by pass Proxy?


Iam using the below code

SendMessage("[e-mail]", "[e-mail]", Body, "Subject goes here")
 
 Public Sub SendMessage(ByVal [To] As String, ByVal Fromm As String, ByVal Body As String, ByVal Subject As String)

        Dim too As New MailAddress([To])

        Dim from As New MailAddress(Fromm)

        Dim message As MailMessage = New MailMessage(from, too) ' subject, body)

        message.Subject = Subject

        message.Body = Body

        Dim client As SmtpClient = New SmtpClient("smtp.gmail.com", 465)

        client.Timeout = 30000

        client.EnableSsl = True

        client.Credentials = New System.Net.NetworkCredential("[e-mail]", "123", "") 


        Try

            client.Send(message)

        Catch e As Exception

            Me.Text = e.Message + " " & e.InnerException.Message

        End Try

        Me.Opacity = 100
    End Sub

How to send emails using Outlook express?
Will this issue solve if i use Outlook Express?

Kindly Reply,
sql.devloper

Answer 1

Try port 587

   Dim client As SmtpClient = New SmtpClient("smtp.gmail.com", 587)

---

Arjun Paudel

Answer 2

Try port 587

   Dim
 client As
 SmtpClient = New
 SmtpClient("smtp.gmail.com"
, 587)

---

Arjun Paudel

Thanks for your reply,

I tried ,It didnt work,same error is coming

Is that because of Proxy?
kindly reply

Answer 3

Do you have firewall? If yes make sure port 587 not being blocked.

---

Arjun Paudel

Answer 4

Thanks for the mail,
I will check it.
Could you please tell ways to send mail using outlook?
If i try using outlook express will the same issue come?
kindly reply,
sql.developer

Answer 5

Mail Using Microoft Outlook

Add Reference to Microsoft.Office.Interop.Outlook (project add reference)

At top of your form, put

Imports outlook = Microsoft.Office.Interop.Outlook

And Code

Dim OutlookMessage As outlook.MailItem

        Dim AppOutlook As New outlook.Application

        Try

            OutlookMessage = AppOutlook.CreateItem(outlook.OlItemType.olMailItem)

            'Dim Recipients As outlook.Recipients = OutlookMessage.Recipients

            Dim Recipients As outlook.Recipients

            Recipients = OutlookMessage.Recipients

            Recipients.Add("arjun***@hotmail.com")

            OutlookMessage.Subject = "Sending through Outlook"

            OutlookMessage.Body = "Testing outlook Mail"

            OutlookMessage.CC = Nothing

            OutlookMessage.BodyFormat = outlook.OlBodyFormat.olFormatHTML

            OutlookMessage.Send()

        Catch ex As Exception

            MessageBox.Show("Mail could not be sent") 'if you dont want this message, simply delete this line

        Finally

            OutlookMessage = Nothing

            AppOutlook = Nothing

        End Try

---

Arjun Paudel

Answer 6

Thanks for the Mail,
I could not locate Microsoft.Office.Interop.Outlook
I dont have MS office 2003 in my System(i have  MS office 2000)

Dim OutlookMessage As Outlook.MailItem
        Dim AppOutlook As New Outlook.Application
        Try
            OutlookMessage = AppOutlook.CreateItem(Outlook.OlItemType.olMailItem)
            Dim Recipients As Outlook.Recipients = OutlookMessage.Recipients
            'Dim Recipients As Outlook.Recipients
            Recipients = OutlookMessage.Recipients
            Recipients.Add("[e-mail]")

            OutlookMessage.Subject = "Sending through Outlook"
            OutlookMessage.Body = "Testing outlook Mail"
            OutlookMessage.CC = Nothing
            'OutlookMessage.BodyFormat = Outlook.OlBodyFormat.olFormatHTML
            OutlookMessage.Send()
        Catch ex As Exception
            MessageBox.Show("Mail could not be sent") 'if you dont want this message, simply delete this line
        Finally
            OutlookMessage = Nothing
            AppOutlook = Nothing
        End Try

when i added OutlookMessage.Display(False)

i can see outlook window opened but when i click send .its not sending


Kindly Reply,

Answer 7

Hi Sql.developer,

1. Don't have Outlook2000 currently. Just see this article about one issue of Outlook2000 automation. Take it to see whether it is applied for your scenario.

2. Read this article about using VB6 to automate Outlook 2000. Using Outlook object are similar in VB6 and VB.NET. It is just for your reference.

Riquel

---

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Answer 8

Thanks for all your support,
I solved the issue
I added MAPI controls to the form

 With AxMAPISession1
                    .DownLoadMail = False
                    .LogonUI = True
                    .SignOn()
                    .NewSession = True
                    AxMAPIMessages1.SessionID = .SessionID
                End With
                With AxMAPIMessages1
                    .Compose()
                    .RecipAddress = "[e-mail]"
                    .AttachmentPathName = Filename
                    .AddressResolveUI = True
                    .ResolveName()
                    .MsgSubject = "hi"
                    .MsgNoteText = Text
                    .Send(False)
                End With
                AxMAPISession1.SignOff()
                'sendmail = True

Using above code,i was able to send Mails
Anyhow,I was not able to send mails using SMTP,
I tried opening the Ports 587,465,
But as iam working on intranet,was not able to bypass proxy

Thanks again for all your Support.
sql.developer

Answer 9

Remote name could not be resolved 'smtp.gmail.com'

Hi.

Speak abut Proxy in this case is void.

if see this: Remote name could not be resolved 'smtp.gmail.com'

in windows cmd prompt type "ping smtp.gmail.com" without " " and get the IP address like

209.85.143.109(this is same smtp.gmail.com )

and put that IP address instead smtp.gmail.com in code

that is 100% will be usefull.

 

Answer 10

Solveing way for:remote name could not be resolved 'smtp.gmail.com'

Hi.

Speaking abut Proxy in this case is void.

if see this :Remote name could not be resolved 'smtp.gmail.com'

in windows cmd prompt type "ping smtp.gmail.com" without " " and get the IP address like

209.85.143.109(this is same smtp.gmail.com )

and put that IP address instead smtp.gmail.com in code

that is 100% will be usefull.